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2026-06-26 - 22:59
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Fri Jun 26, 2026 13:02:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11219992341,227cyclictest2456-21CPU35
11219992341,227cyclictest2456-21CPU35
11219992341,227cyclictest2456-21CPU35
1123799227222,2cyclictest0-21swapper/1909:39:4011
1123799227222,2cyclictest0-21swapper/1909:39:3911
1126099209195,11cyclictest0-21swapper/3912:02:4233
1126099209195,11cyclictest0-21swapper/3912:02:4133
11219992081,68cyclictest0-21swapper/509:50:1635
11219992081,68cyclictest0-21swapper/509:50:1635
11219992081,68cyclictest0-21swapper/509:50:1635
1123799205202,2cyclictest0-21swapper/1909:50:1511
1123799205202,2cyclictest0-21swapper/1909:50:1511
1123799205202,2cyclictest0-21swapper/1909:50:1411
1124699197191,4cyclictest0-21swapper/2709:35:1620
1124699197191,4cyclictest0-21swapper/2709:35:1620
1124699195184,9cyclictest4398-21qemu-system-x8611:20:3620
1124699195184,9cyclictest4398-21qemu-system-x8611:20:3620
1124699195184,9cyclictest4398-21qemu-system-x8611:20:3620
1125599194182,9cyclictest0-21swapper/3511:31:5329
1125599194182,9cyclictest0-21swapper/3511:31:5329
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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